﻿// Copyright (c) 2014 AlphaSierraPapa for the SharpDevelop Team
// 
// Permission is hereby granted, free of charge, to any person obtaining a copy of this
// software and associated documentation files (the "Software"), to deal in the Software
// without restriction, including without limitation the rights to use, copy, modify, merge,
// publish, distribute, sublicense, and/or sell copies of the Software, and to permit persons
// to whom the Software is furnished to do so, subject to the following conditions:
// 
// The above copyright notice and this permission notice shall be included in all copies or
// substantial portions of the Software.
// 
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED,
// INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR
// PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE
// FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR
// OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
// DEALINGS IN THE SOFTWARE.

using System;
using System.Collections.Generic;

namespace ICSharpCode.Scripting
{
	public class ScriptingConsoleUnreadLines
	{
		List<string> unreadLines = new List<string>();
		
		public ScriptingConsoleUnreadLines()
		{
		}
		
		public bool IsLineAvailable {
			get { return unreadLines.Count > 0; }
		}
		
		public int Count  {
			get { return unreadLines.Count; }
		}
		
		public string RemoveFirstLine()
		{
			if (IsLineAvailable) {
				string line = unreadLines[0];
				unreadLines.RemoveAt(0);
				return line;
			}
			return null;
		}
		
		public void AddLine(string line)
		{
			unreadLines.Add(line);
		}
		
		public void AddAllLinesExceptLast(IList<string> lines)
		{
			int howMany = lines.Count - 1;
			for (int i = 0; i < howMany; ++i) {
				string line = lines[i];
				unreadLines.Add(line);
			}
		}
		
		public string[] ToArray()
		{
			return unreadLines.ToArray();
		}
	}
}
